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Vibration technology updated

12 October 2016

The Stora Enso Kvarnsveden paper mill is renovating the vibration monitoring system on its PM10 paper machine. Transducers, connectors, cables and measurement units will be replaced because the system has reached the end of its service life.

An older online system from SPM will be replaced with the company's multifunctional online system Intellinova. A total of 77 transducer positions with vibration and shock pulse transducers will be replaced with new accelerometers. The monitoring system will use the High Definition technology HD ENV which provides long warning times for deteriorating mechanical condition.

Ulf Isaksson, predictive maintenance supervisor, and Peter Forsström, predictive maintentance inspector, explain: "Since we now run the Intellinova online system at PM10 soft calender, which is working well, we decided to develop the system further. One of the strengths of the system is that we are able to see bearing damage/locking collar looseness very early with the measuring technique HD ENV, which in turn means that we can prepare our maintenance operations well in advance and perform them during planned stoppages.”

Stora Enso Kvarnsveden also implements online monitoring with systems from SPM on the winder belonging to PM12, the soft calendar at PM10 and the supercalender at PM8 with good results. Online monitoring and periodic measurements with the portable instrument Leonova Emerald from SPM is done on selected measuring points throughout the pulp and paper mill; for example, bearing condition is monitored with SPM HD on several of the wire and wash presses which provide pulp for paper machine PM12.

 
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